Clean workbench capable of freely switching positive pressure and negative pressure

Abstract

The utility model belongs to the technical field of experimental devices, and particularly relates to a clean bench capable of freely switching positive pressure and negative pressure. Which comprises a clean bench body provided with a control panel, and is characterized in that a positive and negative pressure cleaning assembly is arranged on the clean bench body, and a lifting assembly is arranged on the lower side face of the clean bench body. Compared with the prior art, the cleaning environment controlled by the fans is more efficient, efficient cleaning can be achieved when the two corresponding fans work at the same time through the first air inlet fan arranged at the lower position and the second air exhaust fan arranged at the higher position, and the working efficiency is improved; and through the designed lifting assembly, the device can be better suitable for different people to use, and the use comfort is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of experimental devices, and in particular relates to a clean workbench with arbitrarily convertible positive and negative pressures. Background Art

[0002] A clean bench is a work surface in a laboratory, hospital or other place that is kept clean and sterile through special equipment and operation methods to ensure the accuracy of experimental results and the quality and safety of products. Usually, a clean bench uses high-efficiency filters to filter particles and microorganisms in the air, and it is also frequently disinfected and cleaned.

[0003] Publication (Announcement) No.: CN217549836U, the utility model discloses a clean workbench with arbitrary positive and negative pressure conversion, including a chassis, a tabletop arranged in the chassis, and a high-efficiency filter and a fan assembly above the tabletop, the top of the chassis is provided with an air outlet, characterized in that: the fan assembly includes at least one fan, a fan mounting plate and a rotating mechanism, the fan is fixed on the fan mounting plate, and is accommodated in a bellows near the top of the chassis, the height of the bellows is greater than the diameter of the fan, the rotating mechanism includes a rotating shaft, the side of the bellows is provided with an axial hole, the rotating shaft passes through the corresponding axial hole, and extends to the outer surface of the bellows axial hole, through the rotation of the rotating shaft in the axial hole, the fan has the freedom to flip in the bellows. The utility model is driven by the rotating mechanism, so that the fan can complete a 0-180 degree flip in the bellows, thereby realizing the conversion of positive and negative pressure in the same workbench, meeting the work needs of different environmental occasions.

[0004] After analysis, it was found that the solution converts positive and negative pressure by flipping the fan. In application, due to the constant change of direction of the air inlet and outlet, the dust on the air inlet side will fall into the clean workbench when flipping, affecting the overall cleaning effect. In addition, due to the different body shapes of different people, the height cannot be adjusted during use, which is inconvenient to use. In view of the above problems, the solution needs to be optimized and improved. Utility Model Content

[0005] In order to solve the problems existing in the background technology, the utility model provides a clean workbench with arbitrarily switchable positive and negative pressures; it has a cleaner and more efficient cleaning environment and is more user-friendly for different groups of people.

[0006] The utility model provides a clean workbench with arbitrarily convertible positive and negative pressures, comprising a clean workbench body, a control panel being provided on the clean workbench body, and characterized in that: a positive and negative pressure cleaning assembly is provided on the clean workbench body, and a lifting assembly is provided on the lower side of the clean workbench body; the lifting assembly comprises a bracket located on the lower side of the clean workbench body, a connecting frame is symmetrically provided on the bracket, a bevel gear 1 and a bevel gear 2 are rotatably provided in the connecting frame, the bevel gear 2 is meshed with the bevel gear 1, a transmission rod is provided between the bevel gears 2, a transmission shaft is provided on the lower side of the connecting frame, a screw is provided on the transmission shaft, a support rod is threadedly connected to the screw, a support leg is provided at the lower end of the support rod, the screw is fixedly connected to the transmission shaft, and the transmission shaft is fixedly connected to the bevel gear 1.

[0007] Furthermore, the positive and negative pressure cleaning components include a fan 1 and an exhaust pipe located on the clean workbench body, the fan 1 and the exhaust pipe are interconnected with the interior of the clean workbench body, the exhaust pipe is provided with a fan 2, and both the fan 1 and the fan 2 are provided with connecting hoses, the clean workbench body is provided with enclosures corresponding to the fan 1 and the fan 2, and the fan 1 and the fan 2 are electrically connected to the control panel.

[0008] Furthermore, a glass door is slidably provided on the clean workbench body, and a control groove is provided on the glass door.

[0009] Furthermore, a protective frame is provided on the lower side of the connection frame, and the protective frame is slidably connected to the support rod.

[0010] Furthermore, a handle is rotatably provided on one side of the connection frame, and the handle is fixedly connected to the second bevel gear.

[0011] Furthermore, an anti-collision pad 1 is provided on the clean workbench body corresponding to the connecting frame.

[0012] Furthermore, a second anti-collision pad is provided on the bracket.

[0013] Furthermore, a protective cover is provided around the transmission rod between the connection frames.

[0014] Beneficial effects of the utility model:

[0015] The utility model has a more efficient fan-controlled cleaning environment. By arranging an air inlet fan 1 at a lower position and an air exhaust fan 2 at a higher position, efficient cleaning can be achieved when the corresponding two fans work at the same time, thereby improving work efficiency. Through the designed lifting component, it can better adapt to the use of different groups of people and improve the comfort of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1The utility model is a top view of a clean workbench with arbitrarily switchable positive and negative pressures.

[0017] Figure 2 The utility model is a bottom-up stereoscopic diagram of a clean workbench with arbitrarily switchable positive and negative pressures.

[0018] Figure 3 It is a schematic diagram of a positive and negative pressure cleaning component of a clean workbench with arbitrarily convertible positive and negative pressures according to the utility model.

[0019] Figure 4 It is a partial cross-sectional view of a lifting assembly of a clean workbench with arbitrarily convertible positive and negative pressures according to the utility model.

[0020] Figure 5 This is a schematic diagram of area A of a clean workbench with arbitrarily switchable positive and negative pressures according to the utility model.

[0021] As shown in the figure:

[0022] 1. Clean workbench body, 2. Control panel, 3. Bracket, 4. Connecting frame, 5. Bevel gear 1, 6. Transmission rod, 7. Bevel gear 2, 8. Transmission shaft, 9. Screw, 10. Support rod, 11. Support leg, 12. Fan 1, 13. Exhaust pipe, 14. Fan 2, 15. Connecting hose, 16. Enclosure, 17. Glass door, 18. Control groove, 19. Protective frame, 20. Handle, 21. Anti-collision pad 1, 22. Anti-collision pad 2, 23. Protective cover. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0025] Please see all instructions drawings:

[0026] A clean bench capable of switching between positive and negative pressures, comprising a clean bench body 1, a control panel 2 provided on the clean bench body 1, a positive and negative pressure cleaning assembly provided on the clean bench body 1, and a lifting assembly provided on the lower side of the clean bench body 1;

[0027] The lifting assembly includes a bracket 3 located on the lower side of the clean workbench body 1, a connecting frame 4 is symmetrically provided on the bracket 3, a bevel gear 1 5 and a bevel gear 2 7 are rotatably provided in the connecting frame 4, the bevel gear 2 7 and the bevel gear 1 5 are meshed with each other, a transmission rod 6 is provided between the bevel gear 2 7, a transmission shaft 8 is provided on the lower side of the connecting frame 4, a screw rod 9 is provided on the transmission shaft 8, a support rod 10 is threadedly connected on the screw 9, a support leg 11 is provided at the lower end of the support rod 10, the screw 9 is fixedly connected to the transmission shaft 7, and the transmission shaft 8 is fixedly connected to the bevel gear 1 5;

[0028] According to the above description, it can be known that the bevel gear 27 is controlled to rotate so that the bevel gear 27 drives the bevel gear 15 to rotate. Through the transmission of the transmission rod 6, the bevel gears 27 in the connecting frames 4 on both sides rotate at the same time, and at the same time drive the bevel gear 15 to rotate, drive the transmission shaft 8 to rotate, and drive the screw 9 to rotate. By utilizing the structural relationship, the screw 9 is driven to rise or fall while rotating, thereby driving the connecting frame 4 to rise or fall, so that the bracket 3 completes the corresponding lifting and lowering, which is convenient for different people to use and improves the comfort of use.

[0029] As a technical optimization scheme of the utility model, the positive and negative pressure cleaning assembly includes a fan 12 and an exhaust pipe 13 located on the clean bench body 1, the fan 12 and the exhaust pipe 13 are interconnected with the inside of the clean bench body 1, the exhaust pipe 13 is provided with a fan 2 14, and the fan 1 12 and the fan 2 14 are both provided with a connecting hose 15, and the connecting hose 15 is interconnected with the outside air; the clean bench body 1 is provided with a fence 16 corresponding to the fan 12 and the fan 2 14, and the fan 1 12 and the fan 2 14 are electrically connected to the control panel 2;

[0030] According to the above description, it can be known that the control panel 2 is used to control the operation of fan 12 and fan 2 14. The air brought in by fan 12 is filtered by a high-efficiency air filter and then blown into the working area, thereby forming a sterile and clean working area within a certain range. Fan 2 14 sucks out the contaminated air in the working area, filters it through a high-efficiency air filter and then discharges it, thereby ensuring that the environment is not polluted. Fan 2 14 is located at a high place, which can be in a better position to remove polluted air.

[0031] As a technical optimization solution of the utility model, a glass door 17 is slidably provided on the clean workbench body 1, and a control groove 18 is provided on the glass door 17;

[0032] According to the above description, by opening and closing the glass door 17, a better cleaning environment can be provided for the clean workbench body 1, and the control groove 18 can be conveniently controlled by the staff through fingers.

[0033] As a technical optimization solution of the utility model, a protective frame 19 is provided on the lower side of the connection frame 4, and the protective frame 19 is slidably connected to the support rod 10;

[0034] It can be seen from the above description that the protection frame 19 can effectively improve the stability of the screw rod 9 when it is lifted or lowered.

[0035] As a technical optimization solution of the utility model, a handle 20 is rotatably provided on one side of the connecting frame 4, and the handle 20 is fixedly connected to the bevel gear 2 7;

[0036] According to the above description, the handle 20 facilitates the control of the bevel gear 2 7 , and the lifting and lowering control of the clean workbench body 1 is more convenient.

[0037] As a technical optimization solution of the utility model, an anti-collision pad 21 is provided on the clean workbench body 1 corresponding to the connecting frame 4;

[0038] According to the above description, the anti-collision pad 21 is designed for the position of the handle 20, which can protect the staff from pain when the handle 20 collides with the lower side of the clean workbench body 1 when controlling the handle 20.

[0039] As a technical optimization solution of the utility model, a second anti-collision pad 22 is provided on the bracket 3;

[0040] According to the above description, the anti-collision pad 2 can prevent the legs of the worker from colliding with the bracket 3, thereby protecting the legs of the worker.

[0041] As a technical optimization solution of the utility model, a protective cover 23 is provided around the transmission rod 6 between the connecting frames 4;

[0042] According to the above description, the protective cover 23 can protect the transmission rod 6, can provide auxiliary support for the bracket 3, and is more beautiful.

[0043] Working principle:

[0044] Before using the clean bench body 1, the staff needs to close the glass door 17. The ultraviolet lamp, fan 1 12 and fan 2 14 in the clean bench body 1 are used to sterilize the interior and create a sterile environment. Then, the staff can make corresponding adjustments through the lifting component according to their height to provide a better working environment for the staff.

[0045] The above describes the utility model and its implementation methods, which are not restrictive. The specific implementation method is only one of the implementation methods of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it, without departing from the purpose of the invention of the utility model, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the utility model.

Claims

1. A clean bench with arbitrarily switchable positive and negative pressures, comprising a clean bench body, on which a control panel is provided, characterized in that: The clean workbench body is provided with a positive and negative pressure cleaning component, and the lower side of the clean workbench body is provided with a lifting component; the lifting component includes a bracket located on the lower side of the clean workbench body, and a connecting frame is symmetrically provided on the bracket, and bevel gear one and bevel gear two are rotatably provided in the connecting frame, and the bevel gear two is meshed with the bevel gear one, and a transmission rod is provided between the bevel gears two, and a transmission shaft is provided on the lower side of the connecting frame, and a screw is provided on the transmission shaft, and a support rod is threadedly connected to the screw, and a support leg is provided at the lower end of the support rod, and the screw is fixedly connected to the transmission shaft, and the transmission shaft is fixedly connected to the bevel gear one.

2. A clean workbench with arbitrarily switchable positive and negative pressures according to claim 1, characterized in that: The positive and negative pressure cleaning components include a fan 1 and an exhaust pipe located on the clean workbench body, the fan 1 and the exhaust pipe are interconnected with the inside of the clean workbench body, the exhaust pipe is provided with a fan 2, and both the fan 1 and the fan 2 are provided with connecting hoses, the clean workbench body is provided with enclosures corresponding to the fan 1 and the fan 2, and the fan 1 and the fan 2 are electrically connected to the control panel.

3. A clean workbench with arbitrarily switchable positive and negative pressures according to claim 1, characterized in that: A glass door is slidably provided on the clean workbench body, and a control groove is provided on the glass door.

4. A clean workbench with arbitrary positive and negative pressure conversion according to claim 1, characterized in that: A protection frame is provided on the lower side of the connection frame, and the protection frame is slidably connected to the support rod.

5. A clean workbench with arbitrarily switchable positive and negative pressures according to claim 1, characterized in that: A handle is rotatably provided on the connection frame on one side, and the handle is fixedly connected to the second bevel gear.

6. A clean workbench with arbitrarily switchable positive and negative pressures according to claim 1, characterized in that: An anti-collision pad 1 is provided on the clean workbench body corresponding to the connecting frame.

7. A clean workbench with arbitrarily switchable positive and negative pressures according to claim 1, characterized in that: The bracket is provided with a second anti-collision pad.

8. A clean workbench with arbitrarily switchable positive and negative pressures according to claim 1, characterized in that: A protective cover is arranged between the connection frames and around the transmission rod.

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